Corrugated pipe compensator with protection device

Abstract

The utility model provides a bellows compensator with a protection device, and relates to the technical field of bellows compensators, the bellows compensator comprises a compensator body, the compensator body comprises a bellows body and flange plates arranged at two ends of the bellows body, a flow guide lining cylinder is arranged in the bellows body, and the flange plates are connected with the bellows body. A protective sleeve is arranged on the outer side of the corrugated pipe body. The protective corrugated pipe in the protective sleeve can provide additional protection for the corrugated pipe body, so that the corrugated pipe body is prevented from being damaged by external mechanical collision, abrasion, corrosion and the like, and the service life of the corrugated pipe is prolonged; due to the existence of the flow guide lining cylinder, a medium can be guided to flow more uniformly and stably in the corrugated pipe body, and scouring and abrasion of the medium to the inner wall of the corrugated pipe are reduced.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of bellows compensator, concretely relates to a bellows compensator with protection device. BACKGROUND

[0002] In modern industrial production and various infrastructure construction, pipeline system as the key carrier of conveying various fluid media (such as petroleum, natural gas, hot water, steam and chemical raw materials etc.), is widely used in energy, chemical industry, construction, metallurgy and many other fields. With the continuous progress and development of industrial technology, the working conditions faced by pipeline system are increasingly complex and severe, such as high temperature, high pressure, strong corrosion and high flow rate and so on.

[0003] In the process of pipeline system operation, due to the large fluctuation of temperature, the frequent change of medium pressure and the thermal expansion and contraction of pipeline itself, it is easy to cause the displacement, deformation and even rupture of pipeline. In order to effectively solve these problems, bellows compensator emerges as the times require. Although the traditional bellows compensator can absorb the displacement of pipeline to a certain extent and relieve the stress concentration of pipeline system, it has many limitations. On the one hand, the bellows is directly contacted with conveying medium, under the scouring of medium with high flow rate, corrosion or containing solid particle impurities, the inner wall of bellows is easily worn and corroded, thereby greatly shortening the service life of compensator and increasing the maintenance cost and safety hazard of pipeline system. For example, in chemical production, the pipeline conveying strong corrosive chemical raw materials may appear perforation leakage phenomenon in a short time. On the other hand, the traditional bellows compensator lacks effective protection measures in complex external environment, and is easily damaged by external mechanical impact and extrusion. Once the bellows is damaged, the function of the whole compensator will be seriously affected, and then the normal operation of the whole pipeline system is endangered. CONTENT OF THE UTILITY MODEL

[0004] 1. The technical problem to be solved by the utility model:

[0005] The utility model provides a bellows compensator with protection device to solve the technical problems in the above background technology.

[0006] 2. Technical scheme:

[0007] In order to achieve the above purpose, the utility model provides the technical scheme that a bellows compensator with protection device, including compensator body, the compensator body includes bellows body and the flange disc that sets up at the both ends of bellows body, two flow guide inner lining cylinders are symmetrically arranged in the bellows body, the total length of two flow guide inner lining cylinders is equal to the shortest length of compensator body, and the outer side of bellows body is provided with protective sleeve.

[0008] Preferably, the flow guide lining cylinder comprises a flow guide cylinder, end covers are arranged at two ends of the flow guide cylinder, a plurality of connecting holes one are formed in the end covers, the connecting holes one correspond to the holes in the flange plate, and the end covers are arranged on the outer side of the flange plate.

[0009] Preferably, trumpet mouths are arranged at two ends of the flow guide cylinder, a plurality of flow guide grooves are equidistantly formed in the inner wall of the flow guide cylinder, and the flow guide grooves are arranged along the axial direction of the flow guide cylinder.

[0010] Preferably, the protection sleeve comprises symmetrical adjustable bases one and two, the adjustable bases one and two are arranged on the inner side of the flange plate, and a protection bellows is arranged between the adjustable bases one and two.

[0011] Preferably, the adjustable bases one and two are of the same structure, the adjustable base one comprises a fixed disc one and a threaded sleeve, a threaded column is arranged at the center of the fixed disc one, the threaded sleeve is installed on the threaded column in a threaded mode, and a locking coil is further arranged on the threaded column.

[0012] Preferably, connecting holes two are formed in the fixed disc one and correspond to the holes in the flange plate, a fixed disc two is fixedly installed on the end of the threaded sleeve away from the fixed disc one, connecting discs are arranged at two ends of the protection bellows, and connecting holes three are formed in the connecting discs and the fixed disc two.

[0013] 3. Beneficial effects:

[0014] Compared with the prior art, the technical scheme has the following beneficial effects:

[0015] The flow guide lining cylinder and the protection sleeve are arranged, the medium flow guiding, the bellows protection and the displacement compensation function are organically combined together, the structure is compact, the components work cooperatively, and the overall performance and reliability of the compensator are improved.

[0016] The protection bellows in the protection sleeve can provide additional protection for the bellows body, prevent the bellows body from being damaged by external mechanical impact, abrasion and corrosion, prolong the service life of the bellows, and adjust the position and tension of the protection bellows according to actual conditions, so that the protection bellows can better play a protection role, can adapt to the protection requirements under different working conditions, and improve the working ability of the compensator in complex environments.

[0017] The flow guide inner lining cylinder can guide the medium to flow more uniformly and stably in the corrugated pipe body, reduce the erosion and abrasion of the medium to the inner wall of the corrugated pipe, reduce the situation of excessively high or excessively low local pressure caused by uneven medium flow, improve the operation stability and safety of the pipeline system, make the medium flow more smoothly, reduce the resistance of the pipeline system, and improve the medium conveying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is an overall structure schematic view of the utility model;

[0019] Fig. 2 It is an overall structure schematic view of the utility model from another angle;

[0020] Fig. 3 It is an explosion structure schematic view of the utility model;

[0021] Fig. 4 It is a protective sleeve structure schematic view of the utility model;

[0022] Fig. 5 It is a flow guide inner lining cylinder structure schematic view of the utility model;

[0023] Fig. 6 It is an adjustable base one structure schematic view of the utility model.

[0024] Reference signs:

[0025] 1, compensator body; 11, flange plate; 12, corrugated pipe body; 2, flow guide inner lining cylinder; 21, flow guide cylinder; 22, end cover; 23, connecting hole one; 24, horn mouth; 25, flow guide groove; 3, protective sleeve; 31, adjustable base one; 311, fixed disc one; 312, threaded column; 313, connecting hole two; 314, threaded sleeve; 315, fixed disc two; 316, connecting hole three; 317, locking coil; 32, adjustable base two; 33, protective corrugated pipe; 34, connecting disc. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings, and the drawings show several embodiments of the utility model, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0027] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] It should be noted that the structures not introduced in the utility model are the same as the prior art or can be realized by using the prior art, which is not described here. Embodiment

[0031] Referring to the drawings Figs. 1-6 A corrugated pipe compensator with a protection device, comprising a compensator body 1, the compensator body 1 comprises a corrugated pipe body 12 and a flange plate 11 arranged at both ends of the corrugated pipe body 12, two flow guide inner liner sleeves 2 are symmetrically arranged in the corrugated pipe body 12, the total length of the two flow guide inner liner sleeves 2 is equal to the shortest length of the compensator body 1, the two flow guide inner liner sleeves 2 are not fixedly connected, and a protective sleeve 3 is arranged on the outer side of the corrugated pipe body 12.

[0032] The total length of the two flow guide inner lining tubes 2 is equal to the shortest length of the compensator body 1. When the length of the compensator body 1 changes, because the two flow guide inner lining tubes 2 are not fixedly connected, they can flexibly adjust the relative position according to the expansion and contraction of the compensator body 1. For example, when the compensator body 1 is shortened, the two flow guide inner lining tubes 2 can move closer to each other, but because the total length is adapted, the internal flow guide grooves 25 can still continuously and accurately guide the medium flow. This effectively prevents problems such as flow turbulence and impact intensification of the medium due to the length change of the compensator body 1, and effectively ensures the stability of the medium conveying in the pipeline system, avoiding damage to downstream equipment due to abnormal medium flow. Even if the compensator body 1 is lengthened, the symmetrically arranged flow guide inner lining tubes 2 act as internal support structures in the compensator body 1, and the two flow guide inner lining tubes 2 will move to both sides synchronously although they are not fixedly connected. In this process, they provide uniform and continuous support force for the corrugated pipe body 12 by virtue of their rigid structure.

[0033] The flow guide inner lining tube 2 comprises a flow guide tube 21, and end covers 22 are arranged at both ends of the flow guide tube 21. A plurality of connecting holes one 23 are formed in the end covers 22, the connecting holes one 23 correspond to the holes in the flange plate 11, and the end covers 22 are arranged on the outer side of the flange plate 11. The flow guide tube 21 is provided with a bell mouth 24 at both ends, and a plurality of flow guide grooves 25 are formed at equal intervals on the inner wall of the flow guide tube 21 and arranged in the axial direction of the flow guide tube 21.

[0034] The protective sleeve 3 comprises symmetrically arranged adjustable bases one 31 and adjustable bases two 32, the adjustable bases one 31 and the adjustable bases two 32 are arranged on the inner side of the flange plate 11, and a protective corrugated pipe 33 is arranged between the adjustable bases one 31 and the adjustable bases two 32. The adjustable bases one 31 and the adjustable bases two 32 are the same in structure. The adjustable bases one 31 comprise a fixed disc one 311 and a threaded sleeve 314, a threaded column 312 is arranged at the center of the fixed disc one 311, the threaded sleeve 314 is installed on the threaded column 312 through threads, and a locking coil 317 is further arranged on the threaded column 312. A connecting hole two 313 corresponding to the holes in the flange plate 11 is formed in the fixed disc one 311, a fixed disc two 315 is fixedly installed on the end of the threaded sleeve 314 away from the fixed disc one 311, and connecting discs 34 are arranged at both ends of the protective corrugated pipe 33. Connecting holes three 316 are formed in the connecting discs 34 and the fixed disc two 315.

[0035] Working principle:

[0036] When the pipeline system is running, when the fluid medium reaches the compensator body 1, because the flow guide inner lining tube 2 is at the front end position of the medium flow in the compensator body 1, and the end covers 22 at both ends are connected with the holes in the flange plate 11 through the connecting holes one 23, the medium will preferentially enter the flow guide inner lining tube 2, so that the channel for the fluid to enter is smooth and clear.

[0037] The guide groove 25 is arranged on the inner wall of the flow guide cylinder 21 in the axial direction. When the medium enters the flow guide cylinder 21, the guide groove 25 guides the flow direction of the medium. Since the axial direction of the guide groove 25 is consistent with the main flow direction of the medium in the pipeline, the medium cannot flow randomly during the flow process due to the constraint of the groove wall. For example, in some large heating pipelines, hot water is used as the medium, and the flow rate is large and the flow speed is fast. If the hot water directly impacts the inner wall of the corrugated pipe body 12, it will cause serious erosion and wear of the corrugated pipe. With the guide groove 25, the hot water can flow orderly along the guide groove, the impact force of the medium on the inner wall of the corrugated pipe is dispersed and guided, the local impact pressure is reduced, and the flow direction of the medium is more stable and orderly. Such orderly flow not only reduces the direct impact on the inner wall of the corrugated pipe body 12, but also effectively reduces the resistance of the pipeline system and improves the medium conveying efficiency.

[0038] The structure design of the adjustable base one 31 and the adjustable base two 32 provides convenience for adjusting the position and tension of the protective corrugated pipe 33. The threaded sleeve 314 is installed on the threaded column 312 by threads, and the operator can change its position on the threaded column 312 by rotating the threaded sleeve 314. When the threaded sleeve 314 moves away from the fixed disc one 311, the tension of the protective corrugated pipe 33 is increased; on the contrary, when the threaded sleeve 314 moves towards the fixed disc one 311, the tension of the protective corrugated pipe 33 is reduced. The state of the protective corrugated pipe 33 can be flexibly adjusted in this way. In addition, the locking coil 317 arranged on the threaded column 312 can fix the threaded sleeve 314 at the corresponding position after adjusting the position and tension, prevent it from moving due to pipeline vibration and other factors, and ensure that the protective corrugated pipe 33 is always in the best protection state.

[0039] The protective corrugated pipe 33 not only can adapt to the deformation of the corrugated pipe body 12, but also can provide external protection and support for the corrugated pipe body 12 through its structure and material properties. In some industrial environments, the pipeline may be subjected to collision or friction from external objects. The protective corrugated pipe 33 can serve as the first line of defense, withstand these external forces, and prevent the corrugated pipe body 12 from being directly damaged mechanically. Its material usually has certain wear resistance and impact resistance, which can effectively disperse and buffer the impact force from the outside, protecting the integrity of the corrugated pipe body 12. At the same time, the protective corrugated pipe 33 can provide certain support when the corrugated pipe body 12 deforms, helping the corrugated pipe body 12 maintain its structural stability and preventing the corrugated pipe body 12 from failing due to excessive deformation.

[0040] The end cover 22 of the flow guide inner liner cylinder 2 is uniformly distributed with a plurality of connection holes one 23, which accurately correspond to the holes on the flange disc 11 at both ends of the compensator body 1. During installation, the end cover 22 is tightly fixed outside the flange disc 11 by using bolts, nuts and other connecting parts.

[0041] A threaded column 312 is arranged at the center of the fixing disc 311 of the adjustable base 31, and a connecting hole 313 is also arranged on the fixing disc 311 and corresponds to the hole on the flange plate 11. During installation, the fixing disc 311 is first placed on the inner side of the flange plate 11, the connecting hole 313 is aligned with the hole on the flange plate 11, and then a connecting member (such as a bolt) is used to pass through the holes and is tightened, so as to fix the adjustable base 31 on the flange plate 11. This connecting manner enables the adjustable base 31 to be stably installed on the compensator body 1, and provides a basis for subsequent installation of the protective bellows 33 and adjustment of the position and tension of the protective bellows 33.

[0042] Connecting discs 34 are arranged at both ends of the protective bellows 33, and connecting holes 316 are arranged on the connecting discs 34 and the fixing disc 315. When the adjustable base 31 and the adjustable base 32 are installed on the flange plate 11 and the positions are adjusted, the connecting disc 34 at one end of the protective bellows 33 is aligned with the fixing disc 315, the connecting holes 316 are corresponded, and then the connecting member (such as a bolt) is used to fix them together. The same method is used to connect the other end of the protective bellows 33 and the fixing disc 315 of the other adjustable base. In this way, the protective sleeve 3 is stably connected with the compensator body 1 through the adjustable base 31, the adjustable base 32 and the compensator body 1.

[0043] The above-described embodiments only express certain implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A bellows compensator with a protective device, comprising a compensator body (1), characterized in that: The compensator body (1) includes a bellows body (12) and flanges (11) at both ends of the bellows body (12). Two flow guide liners (2) are symmetrically arranged inside the bellows body (12). The total length of the two flow guide liners (2) is equal to the shortest length of the compensator body (1). A protective sleeve (3) is provided on the outside of the bellows body (12).

2. A bellows compensator with a protection device according to claim 1, characterized in that: The guide liner (2) includes a guide tube (21), and end caps (22) are provided at both ends of the guide tube (21). Several connection holes (23) are provided on the end caps (22), and the connection holes (23) correspond to the holes on the flange (11). The end caps (22) are located on the outside of the flange (11).

3. A bellows compensator with a protective device according to claim 2, characterized in that: The guide tube (21) is provided with flared mouths (24) at both ends, and a number of guide grooves (25) are provided at equal intervals on the inner wall of the guide tube (21), and the guide grooves (25) are arranged along the axial direction of the guide tube (21).

4. A bellows compensator with a protection device according to claim 1, characterized in that: The protective sleeve (3) includes an adjustable base one (31) and an adjustable base two (32) arranged symmetrically. The adjustable base one (31) and the adjustable base two (32) are arranged inside the flange (11), and a protective bellows (33) is provided between the adjustable base one (31) and the adjustable base two (32).

5. A bellows compensator with a protective device according to claim 4, characterized in that: The adjustable base one (31) and the adjustable base two (32) have the same structure. The adjustable base one (31) includes a fixed disk one (311) and a threaded sleeve (314). A threaded post (312) is provided at the center of the fixed disk one (311). The threaded sleeve (314) is installed on the threaded post (312) by threads. A locking screw (317) is also provided on the threaded post (312).

6. A bellows compensator with a protective device according to claim 5, characterized in that: The fixed plate one (311) is provided with a connection hole two (313) corresponding to the hole on the flange (11). The threaded sleeve (314) is fixedly installed with a fixed plate two (315) at the end away from the fixed plate one (311). The protective bellows (33) is provided with a connecting plate (34) at both ends. The connecting plate (34) and the fixed plate two (315) are provided with a connection hole three (316).

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